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Finding the Fourth Proportional to 4,716.78, 6,509.16 and 2,620.92

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Solution

The fourth proportional to 4,716.78, 6,509.16 and 2,620.92 is: 3,616.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,716.78 : 6,509.16 = 2,620.92 : x
  2. Step 2: Convert to fraction form
    4,716.78/6,509.16 = 2,620.92/x
  3. Step 3: Cross multiply
    4,716.78x = 6,509.16 × 2,620.92
  4. Step 4: Simplify right side
    4,716.78x = 17,059,987.63
  5. Step 5: Solve for x
    x = 17,059,987.63/4,716.78
  6. Step 6: Final answer
    x = 3,616.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.